thompson



(No Model.) 2 Sheets-Sheet 1.

O. A. THOMPSON.

APPARATUS FOR DUPLIGATING MANUSGRIPT, &c.

No. 398,471. Patented Feb. 26, 1889.

W/T/VESSES- N. PETERS. Pmwmfio n lm, Washington. n.0,

(No Model.) 2 Sheets-Sheet 2 O. A. THOMPSON.

APPARATUS FOR DUPLIGATING MANUSCRIPT, &o.

No. 398,471. Patented Feb. 26,1889.

EMHVH HHHIMANHIHII WIT/VESStS,

UNITED STATES PATENT rricE.

CHARLES A. THOMPSON, Ol NE\V YORK, Y.

--APPARATUS FOR DU PLICATING MANUSCRIPT, (20C.

SPECIFICATION forming part of Letters latent No. 398,471, dated February 26, 1889.

Application filed August 6, 1887. Serial No. 246.275. (N0 model.)

To all whom it may concern.-

Be it known that 1, CHARLES A. THOMPSON,

of the city, county, and State of New York, 1

have invented certain new and useful Improvements in Apparatus for Duplicating Manuscript, &c.; andI do hereby declare that the following is a full, clear, and exact de- 1 scription of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

Figure 1 is a side elevation, and Fig. 2 a longitudinal sectional view taken in the line :0 0c of Fig. 3, of an apparatus embracing my said invention. Fig. is a plan or top View of the same.

This invention is designed for duplicating l aniline or other suitable copying ink the mat- Parallel to this roller A is ter to be copied. a roller, 13, which serves to press the duplicate sheet upon which the matter is to be copied against the surface of the roller A, or,

' to speak more exactly, upon the surface provided in reverse to be copied. A series of endless aprons or tapes, C, will carry the secondary or duplicate sheet inward between the said rolls. Motion is given to these tapes by a band-wheel, a, band I), and pulley c from thetshaft of a secondary roll, E, interposed in front of the rolls A l), and arranged to impel and guide the sheet between said rolls A B.

The inner end of the table D is provided with vertical slots 0, through which play vertical moving studs or stops d, which are formed upon the ends of rods or levers G, which are attached to a rock-shaft, H, the said rockshait having at its end the crank f, to which a connecting rod or pitnian, m,is pivoted, the other end of which is inovably attached to an eccentric or cam, 11, on the shaft oi the roll A. A spring, g, is arranged to press the rods or levers G upward to thrust the studs (Z up through the slots or openings 0. When these studs are thus thrust upward, they provide stops which prevent the secondary sheetthat is to say, the sheet upon which a duplicate copyis to be formed-from passing to the 1 rolls A B, 610.; but when the roll A isbrought to such position that the firstline or series of characters to be copied will come upon the desired place upon the secondary or duplicate sheet the eccentric or cam n, acting through 1 the rod or pitman n), will actuate the crank f to depress the studs d, and thereby permit 1 the motion of the endless aprons or tapes to convey the duplicate sheet to and between the rolls A B; so it receives by thus passing between the rolls the printing or impression from the printed or reversed matter on the roll A.

I is a transverse trough .lillcd with felt or other porous material, and having longitom, through which water may pass to a porous pad, K, attached beneath said bottom. This trough is supported at each end by swing ing bars L.

is providedwith a cam, N, so arranged that at a suit-able point in the rotation of the roll A the trough will be raised and afterward lowered. ater or other suitable liquid for moistening the paper as it passes to the rolls A B is placed in the trough l.

A trough, B, for containing water is sup ported at the inner end of the table beneath the said trough I and its contained moisten ring-pad K, and beneath the track or plane of the paper, and serves to moisten the under side of the paper, which will be depressed into the water in said trough B by the descending movement o'f the upper trough and its pad.

As the secondary or duplicate sheet is fei'l forward to and between the rolls A B, as hereinbefore explained, it passes underneath the pad K of the trough l, and the latter, being moistened from water contained in said trough, wets the paper to the requisite degree, the trough 'l'ieing of course depressed during 1 this operation.

The object oi? tempm'arily lifting the trough is to enable the head 01. the secondary or duplicate sheetas, for example, a letter-headto pass to the rolls A B without being wet, the parts of the apparatus being so constructed, arranged, and provided in relation with each other that the trough is lifted whenthe head of the sheet passes underneath the same, and

tudinal slot or a series of openings in its bot- One or both ends of the shaft of the roll A is caused to descend at such part of the sheet 8. The combination of the roller [or carryat which it is designed the copying shall ing the matter to be copied, the pressurebegin. roller 13, the trough B, for containing the Vhat I claim as my invention isf moistening liquid, and the movable upper 1. The combination of the roller for conmoistening-trough, I, having a dampeningtaining the matter to be copied, the pressurc- 1 pad, K, and means for intermittently forcing 6o roller B, the feeding-table, and a verticallysaid upper trough and its pad downward, carmovable water-retaining wetting device'for rying with it the paper to receive the copy moistening the paper arranged above the into the said trough B, substantially as and plane of the table and having a movement for the purpose specified. below such plane, substantially as described. 9. The combination of the roller for con- 2. The combination of the roller A, for car- 5 taining the matter to be copied, the pressurerying the matter to be copied, the pressureroller, andafeeding-table for the paper to reroller 13, the secondary feeding and guiding ceive the copy, with a trough for containing roller E, table D, and a wetting device for Water havinga fixed relation to and arranged moistening the paper, all substantially as and beneath the end of said table, a vertically-infor the purpose herein set forth. termittently-movable trough, I, containing a 3. The combination of the roller A, for carmoistening-pad arranged above the plane of rying the matter to be copied, the pressuresaid table, and vertically-intermittently-movroller B, a table, D, a wetting device, and movj able stops d, operating beneath the plane of able stops d, for intermitting the movement of said table, substantially as described, for the the paper from the table to the wetting depurpose specified. vice and therollers A B, all substantially as 10. The combination of the roller for carryand for the purpose herein set forth. ing the matter to be copied, the pressure- 4. The combination of the roller A, for carroller B, and a feeding-table for the paper to rying the matter to be copied, the pressurereceive the copy, with a wetting device conroller B, the secondary feeding and guiding sisting of a fixed and an intermittentl -movroller E, a table, D, a wetting device, and movable trough part arranged, respectively, below able stops ('1, for in termittin g the movement of and above the plane of the table and the track the paper from the table to the wetting del of the paper to receive the copy, the movable vice and the rollers A B, all. substantially as part being operated to depress said paper beand for the purpose herein set forth. low the plane of the table, substantially as 5. The combination of the roller A, for car described. rying the matter to be copied, the pressure- 11. The combination of the roller for conroller B, table D, a movable wetting-trough taining the matter to be copied, the pressureand pad, and mechanical devices for giving roller B, and a feeding-table for the paper to an intermittentvertical movement thereto, all I receive the copy, with a wetting device consubstantially as and for the purpose herein sisting of a fixed and an intermittently-movset forth. able trough part arranged, respectively, beloW 6. The combination of the roller A, for carand above the plane of the table and the track rying the matter to be copied, the pressure of the paper to receive the copy, verticall 5 roller B, table D, a movable wetting device, movable stops arranged below the table, meand bars L and cam N, for giving an interchanical devices for giving an intermittent mittent vertical movement thereto, all subdownward movement to the movable Wetting stantially as and for the purpose herein set part upon the said paper, and mechanical deforth. vices for giving an intermittent upward move- 7. The combination of the roller A, for carment to, the stops upon said paper toraise it rying the matter to be copied, the pressurewhen the movable wetting part is raised free roller 13, the trough B, for containing the of the latter, substantially as described, for moistening-liquid, and a movable device 0011- the purpose specified. structed and arranged to force downward the l CHARLES A. THOMPSON. paper as it passes to the rolls A B into the XVitnesses: said trough, all substantially as and for the CHARLEs A. HERBERT,

purpose herein set forth.

ALBERT AUBERY. 

